St. Andrews Substation - 115 kV Electrical Substation in the United States

St. Andrews Substation is an operational electrical substation located in the United States, owned and operated by SCE&G. The facility is situated near Charleston, South Carolina, and plays a key role in the regional power distribution network. As a 115 kV substation, it falls within the typical voltage range for sub-transmission and distribution-level infrastructure, supporting the reliable delivery of electricity to residential, commercial, and industrial customers. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for the bulk power system. SCE&G, as the owner and operator, is subject to these standards, ensuring the substation's equipment and operations meet grid stability requirements. The 115 kV voltage level indicates a medium-voltage facility, often serving as a link between higher-voltage transmission lines and lower-voltage distribution networks. St. Andrews Substation contributes to the electrical infrastructure of the Charleston metropolitan area, supporting the region's growing population and economic activities. Its operational status ensures continued grid connectivity and power supply reliability. The facility's location in a coastal urban area underscores its importance in maintaining service continuity, particularly during extreme weather events common to the region.

The substation is located in a coastal urban environment near Charleston, South Carolina, an area prone to hurricanes and flooding. Electrical infrastructure in such regions must be designed with resilience measures, such as elevated equipment and flood barriers, to withstand extreme weather. The 115 kV voltage level and urban setting also require careful management of electromagnetic fields and land use compatibility with surrounding communities.